Instructions: Observe safety regulations. Observe cleanliness rules. To access the injectors, remove the intake manifold and fuel rail with the boost air regulating flaps. The Teflon combustion chamber sealing ring and the O-ring must be replaced.
CAUTION: The fuel system is under pressure!
Only for cars with a resonator: remove the boost air guide pipe to the resonator. Remove the engine casing. Clean the transition from the intake manifold to the cylinder head. Remove the air filter.
Disconnect the vacuum line "arrow" to the activated carbon canister. Disconnect the following electrical connectors: intake air temperature sensor -G42-1-, throttle valve unit -J338-2-, activated carbon canister solenoid valve 1 "N80", Hall sensor "G40".
Separate the vacuum line "1" at the disconnection point "2" and remove the crankcase ventilation hose "3".
Unscrew the bolts of the fuel supply line "arrow" and move it to the side.
Instructions: Relieve pressure in the fuel system.
Loosen the union nut of the fuel line "lower arrow".
Remove the vacuum line "arrow" from the intake manifold flap valve "N316".
Unscrew the coolant line arrow screws from the intake manifold.
Disconnect electrical connector "1" from fuel pressure sensor "G247".
Disconnect the hose clamp "2". Unscrew the bolt "4". Disconnect the electrical connector "arrow". Remove the sound insulation.
Remove the air duct, -1 and 2-.
Unscrew bolt "1" and remove the air duct downwards. Disconnect electrical connectors -1...3- and unscrew the bracket from the intake manifold.
The information is available on the website [www.vwmanual.ru]
Remove the intake manifold support by unscrewing the mounting nut "1" and screw "2". Remove the oil filter.
Disconnect the arrow cable fastener.
Disconnect the "arrow" cable from the intake manifold.
Unscrew the nuts "A" and bolts "arrows" using the nozzle "T10347" from the intake manifold. Carefully lift the intake manifold slightly from the fuel rail of the cylinder head.
Disconnect the electrical connector "arrow" from the potentiometer of the intake manifold flap "G336" and remove the intake manifold. Seal the intake channels with a clean rag.
Instructions: The injectors can remain inserted into the fuel rail.
Remove the fuel rail from the intake manifold.
Installation
The injectors are inserted into the cylinder head. Mount the intake manifold through the mounting pins (left and right below) on the cylinder head.
Instructions: Pay attention to the correct mounting position of the injectors and when fitting the intake manifold onto the cable mount (under the intake manifold).
When performing installation work on the intake manifold, the intake manifold should be pulled out a little again, leaving the injectors inserted in the fuel rail. Then pull the injectors out of the fuel rail again and insert them into the cylinder head. Further installation is carried out in the reverse order of removal. The following should be observed. When fixing the cable fastener to the intake manifold, also secure the other two clamps.
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